CODEWITHSUNDEEP
apisymfonymultiple-file-upload
Lambert
Lambert

Reputation: 13

Symfony 4 - API manage multiple files upload (no bundle)

I'm building an API with Symfony 4 without API bundle. I'm creating all my endpoints manualy, everything is working fine. My problem is when I'm trying to upload multiple files. I have an entity with a field pictures where I need the user to upload multiple files. The problem is that I can't get files, I only receive ONE file.

Here is the field on my entity, the is an array type, I don't know if this is the best pratice : 

/**
 * @ORM\Column(type="array")
 * @OA\Property(type="array")
 * @Groups("main")
 */
private $pictures = [];

In my controller I'm trying to count files (only to test), but I always have 1 file : 

$files = $request->files;
    return $this->json(count($files)); // result 1

The curl used to get this result : 

curl -H "Authorization: Bearer MY_TOKEN" -F "pictures=@PATH_TO_FILE\4b737fac533294776e386a3469e84e16.png" -F "pictures=@PATH_TO_FILE\azekh1454621e54516ze321a511z6259.png" http://127.0.0.1:8000/api/incidents/

add

I also tried with Postman, same result. This is my first API, I'm kinda lost ! I tried a LOT of thing, everything failed :(

Can anyone give me a clue to find the solution please ?

Thanks !!

Upvotes: 0

Views: 728

Answers (1)

Jakumi
Jakumi

Reputation: 8374

like with any other request parameter provided, multiple instances of exactly the same parameter usually override each other:

https://example.org/?param=1&param=2

will be turned into

['param' => 2] // in $_REQUEST or whatever

so, sending two files with pictures=... will suffer the same fate.

to fix that problem, php does understand the [] syntax:

https://example.org/?param[]=1&param[]=2

will be turned into

['param' => [1,2]]

so, for curl it's sufficient to turn pictures=... into pictures[]=....

Files can be transfered in different ways. PHP has a few pitfalls, for example, that it will only accept files when sent as multipart/form-data (source) which leads to the postman problem, which apparently by default sends files differently and you have to set it differently, see the following SO question for some hints:

Upload an image through HTTP POST with Postman

Upvotes: 1

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